class_docstr: Holds utility methods to work with a tokenized text and entity spans.
  
  Spans must be tuples containing the label (str), start char idx (int), and end char idx (int).
  
  Args:
      text: The text the spans refer to.
      tokens: The tokens of the text.
docstr: The text the spans refer to.
docstr_tok: ["The","text","the","spans","refer","to","."]
code: def text(self) -> str:
      """The text the spans refer to."""
      return self._text
  
file_path: argilla/src/argilla/utils/span_utils.py
imports: from typing import Dict, List, Optional, Tuple
label_desc: Use image node_id 2 for calling the SpanUtils obj's underlying member method code with example usage: obj.text() and returns: self